Home / 1,729.41-2,386.85-1,057.61

Finding the Fourth Proportional to 1,729.41, 2,386.85 and 1,057.61

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Solution

The fourth proportional to 1,729.41, 2,386.85 and 1,057.61 is: 1,459.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,729.41 : 2,386.85 = 1,057.61 : x
  2. Step 2: Convert to fraction form
    1,729.41/2,386.85 = 1,057.61/x
  3. Step 3: Cross multiply
    1,729.41x = 2,386.85 × 1,057.61
  4. Step 4: Simplify right side
    1,729.41x = 2,524,352.61
  5. Step 5: Solve for x
    x = 2,524,352.61/1,729.41
  6. Step 6: Final answer
    x = 1,459.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.